Please help due tonight!!! NO LINKS PLEASE. When 57,816 J of heat are transferred to a 240-g of an unknown metal, its temperature increases from 32⁰C to 164⁰ C. Identify the metal.

What mass of carbon dioxide is produced from the complete combustion of 4.50×10−3 g of methane?

V1t2 = v2t1 is an expression of who’s law

The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.